Molecular Structure:

Product description: Product name: Naphthol AS-BO C. I.NO(37560) C A S: 132-68-3 Chemical name: 3-hydroxy-N - (1-naphthyl) -2-naphthyl formamide Subformula: C21H15NO2 Structure. Type: Exterior: Beige powdery Shade: approximate C: 100 + / - 3% Including: 98.5% or higher Melting point: 215 ℃ or higher Alkali insoluble substance: ≤0.2% 2,3 acid content: ≤0.20% Sieve residue 60 mesh (or 80 mesh) ≤5% Application: mainly used for dyeing cotton yarn, cotton fabric, cotton knitting, corduroy, Vinylon, viscose, silk and cotton-fibre, generally not used for printing.This product has a high affinity for cotton and medium coupling ability.It can be used to make fast pigments, neutrins and organic pigments. Synthetic pigment: P.R.16, P.R.134